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Masteriza [31]
2 years ago
5

Someone knows how to do this? Please, help me!

Mathematics
1 answer:
erica [24]2 years ago
5 0

Answer:

a   K=2

b   A =200

c  B = ±2

Step-by-step explanation:

A = kB^2

When A =50 B=5

Substitute these values in

50 = k * 5^2

50 = k*25

Divide by 25

50/25 = k25/25

2 =k

A = 2B^2


When B = 10

A = 2*10^2

A = 2 *100

A = 200


When A =8

8 =2B^2

Divide by 2

8/2 = 2/2B^2

4 = B^2

Take the square root

±sqrt(4) = sqrt(B^2)

±2 = B

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Gayle starts to save at age 20 for an extended vacation around the world that she will take on her 45th birthday. She will contr
Katen [24]
For this case we have the following equation:
 P (t) = P (1 + r / n) ^ (n * t)
 Where,
 P: initial investment
 r: interest
 n: periods
 t: time
 she will take on her 45th birthday:
 for t = 25:
 P (25) = 1000 * (1 + 0.0165 / 4) ^ (4 * 25)
 P (25) = 1509.31 $
 Answer:
 The future value of this investment when she takes her trip is:
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8 0
3 years ago
Read 2 more answers
The price of a car increased by 7% which expression can be used to calculate the new price of the car
julsineya [31]

Answer: P * ( 1 + 7%)

Step-by-step explanation:

You included no options but the expression should go something like this:

Pn = P * ( 1 + 7%)

Where Pn is the new price

P is the current price

<em>The above formula will show the new price given the current price. </em>

6 0
3 years ago
Jordy walked 1/3 mile in 15 minutes walking at this same pace how far would he get in an hour
Digiron [165]

Answer:

1.3 miles is your answer

3 0
3 years ago
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3(x + 4) = 27 what is x
Alla [95]

Answer:

x = 5

Step-by-step explanation:

This is a simple equation if you look at it right and don't get scared by the "x."

All we need to do is figure out what times 3 = 27. We can do this easily by diving 27 by 3.

27 ÷ 3 = 9

Since our "equation" is 3(x + 4) = 27 we know whatever is in the parenthesis () has to equal to 9. We already get 4 so:

5 + 4 = 9.

3 times 9 = 27.

5 is your answer.

<u>Hope this helps and have a nice day!</u>

PS if you could mark brainliest that'd be great! I'm very close the "expert" rank. Haha, sorry I usually don't ask.

6 0
2 years ago
Help Please!!!! 22pts!!!!!
laila [671]

Answer:

1.) 7/20 or StartFraction 7 Over 20 EndFraction

please put this as brainliest

Step-by-step explanation:

3 investors:

1 investor= 1/4 or 5/20

2 investor= 2/5 or 8/20

1+2 investors= 13/20

3rd investor = 7/20

3 0
3 years ago
Read 2 more answers
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